Tube holder for medical specimen mixing device or similar article



FIG. 1 is a top or plan view of a tube holder for medical specimen mixing device or a similar article showing our design.

FIG. 2 is a side view looking from the left hand side of the article of FIG. 1.

FIG. 3 is a sectional view taken along lines 3--3 of FIG. 1 depicting the contours of the article. 

The ornamental design for a tube holder for medical specimen mixing device or similar article, substantially as shown and described. 